EP1465825B1 - Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports. - Google Patents

Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports. Download PDF

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Publication number
EP1465825B1
EP1465825B1 EP03729505A EP03729505A EP1465825B1 EP 1465825 B1 EP1465825 B1 EP 1465825B1 EP 03729505 A EP03729505 A EP 03729505A EP 03729505 A EP03729505 A EP 03729505A EP 1465825 B1 EP1465825 B1 EP 1465825B1
Authority
EP
European Patent Office
Prior art keywords
support
cylindrical elements
guide means
cylindrical
elements
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03729505A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1465825A1 (fr
Inventor
Michel Valentin
Jacques Verdollin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Orano Demantelement SAS
Original Assignee
Compagnie Generale des Matieres Nucleaires SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale des Matieres Nucleaires SA filed Critical Compagnie Generale des Matieres Nucleaires SA
Publication of EP1465825A1 publication Critical patent/EP1465825A1/fr
Application granted granted Critical
Publication of EP1465825B1 publication Critical patent/EP1465825B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G13/00—Roller-ways
    • B65G13/11—Roller frames
    • B65G13/12—Roller frames adjustable

Definitions

  • the technical sector of this invention is that of media likely to to receive cylindrical elements such as tubes and to ensure the flow in one direction parallel to the axis of these cylindrical elements.
  • the technical sector of the present invention concerns the carriers of elements cylindrical and methods of transporting elements cylindrical using such supports. More particularly, the invention may especially apply to cylindrical elements supports intended to allow the translation of these by relative to the supports, as well as the rotation of these cylindrical elements along their axis when they are in contact with these same supports.
  • each support having a roller suitable for allow these tubes to scroll in one direction parallel to the axis of these tubes (see US-A-1,349,070).
  • Each support includes a roller having a V-shaped groove for cooperate with the tubes during their passage on the support. This type of roller is used because of the nature of the tubes to be transported as well as the spacing practiced between the different supports.
  • the tube finds himself in a cantilever position that causes the flexion of its downstream end.
  • This downstream end of the tube, arriving at the next support is at a lower altitude than the part of the tube supported by the support roller located in upstream in the scroll direction.
  • the form cylindrical roller then allows to achieve a progressive correction of the altitude of the extremity downstream of the tube plunging downwards, without damaging this end.
  • the downstream end of the tube is then found in a horizontal plane having substantially the same altitude as the rest of the tube.
  • This misalignment encountered causes a phenomenon of sliding between the sides of the throat in V of the rollers and the tubes scrolling on these rollers. These movements are concretized by the wrenching of metal particles belonging to the surface outside of the tube. These particles, once torn off, become embedded in the sides of the V-shaped throat rollers, thus forming a kind of abrasive surface.
  • the tubes therefore have longitudinal marks on their outer surface, these marks therefore altering the visual aspect of the finished product.
  • such carriers are also intended to rotation of the tubes on themselves, for example to perform a welding operation.
  • the tearing of the metal particles of the tube goes constitute an additional disadvantage to that mentioned above.
  • the particles embedded in the sides of the V groove of the rollers form a surface comparable to an abrasive surface that amplifies the friction between the rollers and the tubes during the rotation of these.
  • the direct consequence of rotation is the appearance of circular marks on the outer surface of the tubes, these marks being in addition to those from simple scrolling and deteriorating even more the visual aspect of the finished product.
  • the object of the invention is therefore to present a support for cylindrical elements reducing to maximum marking effects on the surface outside of these cylindrical elements, during their scroll on the support.
  • Another object of the invention is to present a carrier of cylindrical elements as well that a method of conveying cylindrical elements, carrier and this method using at least one support such as that remedying the technical problem raised above.
  • the invention relates to a support for cylindrical elements scrolling, this support comprising first guide means capable of guiding the cylindrical elements at a height z 1.
  • the support downstream in a running direction of the cylindrical elements, the support comprises second guide means able to guide the cylindrical elements to an altitude z 2 greater than z 1 , the friction between the second guide means and the cylindrical elements being smaller than the friction between the first guide means and the cylindrical elements.
  • the cylindrical element in scrolling on the support has only a brief contact with the first guiding means. Indeed, this contact takes place only when the downstream end of the tube arrives on the support, the first guide means yielding then their role to the second means of guiding the fact of their ability to maintain the elements cylindrical at an altitude greater than the altitude at which the first guide means are suitable for maintain these cylindrical elements. Because of this difference in altitude, the passage of the elements cylindrical on the second guide means mark the end of the contact between the first guide means and the cylindrical elements, and this during the rest of the scrolling of these elements.
  • Friction resulting from contact between the second guide means and the elements cylindrical being weaker than friction resulting from the contact between the first means of guidance and these same cylindrical elements, the phenomenon of tearing off particles from the elements cylindrical is considerably lessened, thus improving the visual quality of the final product.
  • the harmful consequences of the defect alignment of the supports with respect to others are almost eradicated.
  • the second guide means are adapted to allow rotation cylindrical elements around an axis of these cylindrical elements.
  • the benefit of this particular characteristic concerning the second guidance means is the possibility of being able to rotate the cylindrical element on itself, according to its axis, which is particularly interesting when we want to carry out an operation such as welding operation of scrolling elements.
  • this rotation of the elements cylindrical is when the latter are in contact with the second guide means.
  • the rotation then leads to fewer circular markings, and this because of two distinct factors.
  • the first factor concerns the very structure of the second means guiding which allow less friction by compared to the friction encountered in the prior art during the rotation of the tubes on the rollers.
  • the second factor is based on the duplication of guiding means, thus making it possible to rotate the cylindrical element on guiding means accumulated only very few metal particles during the scrolling. These two factors contribute simultaneously to minimize the circular markings of the elements cylindrical in rotation.
  • the second means of guidance comprise at least two bearing balls intended to be in contact with said elements cylindrical.
  • this system of balls allows to obtain a coefficient of friction the most possible to eliminate the most cylindrical elements.
  • the carrier beads are, according to a mode of particular embodiment of the invention, realized in stainless steel.
  • these beads carriers then resist the inlay correctly metallic particles from the elements cylindrical.
  • stainless steels are recommended for contact with Zircaloy tubes (trademark), this type of tube can be transported by supports according to the invention.
  • each bearing ball is based on a a plurality of secondary balls located inside a housing retaining the ball carrier.
  • the second means of two bearing balls each having their housing inclined at 45 ° to the axis the main support, this axis being perpendicular to the direction of movement of the cylindrical elements.
  • this allows rotation of the cylindrical element without ejection of the latter during the rotation movement.
  • the two balls are positioned so that one of them is in upstream of the other, in the direction of scrolling cylindrical elements. This particular provision been adopted because of the need to keep a mechanical assembly as compact as possible in order to minimize the size of the support.
  • the support comprises a lateral adjustment system of the assembly formed by the first and second guide means, as well as a vertical adjustment system of the same formed assembly by the first and second guide means.
  • the support according to the invention may also comprise means able to adjust the difference between the altitude z 1 and the altitude z 2 , so as to favor the best possible passage of the cylindrical elements between the first and second guide means .
  • This difference in altitude can be about 0.5mm.
  • the first guide means may include a V-shaped roller.
  • use of a roller advantageously allows straighten the end of the cylindrical element in a horizontal plane, so as to make him approach the second guide means in the best way possible.
  • the invention also relates to a carrier of cylindrical elements comprising at least one support as described above, each support being able to authorize the scrolling of cylindrical elements.
  • a support 1 for cylindrical elements in scrolling (not shown)
  • This support 1 is able to authorize the displacement of the cylindrical elements according to a direction parallel to an axis of these elements, this direction being named the scroll direction of the cylindrical elements and represented by the arrow of Figure 2.
  • the support 1 can also authorize a rotational movement of the cylindrical elements, this rotation being performed along an axis of these elements cylindrical. In this case, the cylindrical elements can then rotate on themselves.
  • the support 1 is fixed rigidly on a frame 3 able to maintain it in a stable position, in order to avoid any uncontrolled movement of the support 1 during the passage of the cylindrical elements.
  • the support 1 comprises firstly first guide means 2 adapted to guide the cylindrical elements.
  • These first guide means 2 preferably comprise a roller 4 with an axis perpendicular to the direction of travel of the cylindrical elements.
  • this roller 4 comprises a V-shaped groove intended to cooperate with the cylindrical elements in scrolling.
  • the roller 4 is sized to maintain the cylindrical elements at an altitude z 1 , this altitude z 1 may for example have the frame 3 as origin.
  • the support 1 Downstream in the direction of scrolling cylindrical elements, the support 1 comprises second guide means 6. These second means of guidance are also able to guide the elements cylindrical in the required direction, but may also, preferably, allow the rotation of these cylindrical elements on themselves.
  • the second guide means 6 comprise a carrier ball system, preferably comprising two bearing balls 8a, 8b capable of being in contact with the cylindrical elements, the two balls carriers 8a, 8b are respectively in housings 10a, 10b. Inside these accommodations 10a, 10b, these bearing balls 8a, 8b are based on a plurality of secondary balls (not shown).
  • the carrier balls 8a, 8b are preferably made of stainless steel.
  • the housings 10a, 10b are arranged inclined way. Indeed, in this embodiment preferred embodiment of the invention, the dwellings are inclined to 45 ° on both sides of a main axis of the support, this main axis being perpendicular to the direction scrolling cylindrical elements. Moreover, the two bearing balls 8a, 8b are positioned such that so that one of them is upstream of the other, in the scrolling direction of the elements cylindrical.
  • the second guide means are then positioned to guide the cylindrical elements to an altitude z 2 , always with the frame 3 for origin, this altitude z 2 being greater than the altitude z 1 .
  • the second guide means 6 are such that the friction resulting from their contact with the cylindrical elements, during the movement of the latter, are lower than the friction resulting from the contact between the first guide means and these same cylindrical elements.
  • the particular provision adopted between the first and the second guide means 2 and 6 are reveals to have an interest when scrolling elements cylindrical.
  • a cylindrical element arriving near the support 1 comes in a low position compared to the first means of 2.
  • This position stems from the fact that downstream part of the cylindrical element is cantilever and is therefore subject to bending.
  • the first guide means 2 are then intended to straighten the part of the cantilever element, so that the whole cylindrical element gets located in a substantially horizontal plane. That's when of this contact between the roller 4 and the cylindrical element that we are witnessing a phenomenon of wrenching particles of the cylindrical element, this phenomenon especially from misalignment between the different supports 1 when they are arranged next to each other. A slip therefore occurs between this cylindrical element and the flanks of the V-shaped groove of the roller 4.
  • the cylindrical element continues its movement on the support 1 and then enters quickly in contact with the second guide means 6.
  • These second guide means 6, located downstream in the direction of scrolling cylindrical elements, are positioned in such a way as to lose contact between the first guide means 2 and the element cylindrical, when the latter comes into contact with the second guide means 6.
  • the second guide means 6 replace the first guide means 2.
  • the bearing balls 8a, 8b can take over from roller 4 and therefore limit the phenomenon of tearing particles into because of the almost zero friction of these balls carriers 8a, 8b on the cylindrical elements.
  • this is done on the bearing balls 8a, 8b, while most of the particles snatch is located on the roller 4.
  • the surface outer cylindrical elements is spared circular markings from the inevitable deposit of particles on the pebbles.
  • first guide means 2 it appears necessary to provide first guide means 2 to restore the position of the cylindrical member cantilever.
  • a roller 4 it is preferable to use a roller 4 to prevent a frontal impact between the bearing balls 8a, 8b or their housing 10a, 10b, and the cylindrical elements scrolling.
  • the difference between the altitude z 2 and the altitude z 1 is about 0.5 mm.
  • the spacing between the top of the roller 4 and the bearing balls 8a, 8b is about 70mm.
  • Each support 1 also includes adjustment systems because of the need for make an alignment between these different supports 1, when they are placed next to each other.
  • this system comprises two screws 16a, 16b screwed opposite one another in a base 18 on which the support 14 rests, each of these screws 16a, 16b being intended to be in contact with 14. These screws 16a, 16b are disposed of way to move in the direction lateral.
  • this adjustment system also includes two screws guide and clamping device 20a, 20b cooperating respectively with two grooves 22a, 22b of the support 14. These screws 22a, 22b have the dual function of authorizing the moving the support 14 in the lateral direction when they are loosened and maintaining that support 14 on the base 18 once it is correctly positioned.
  • a set screw 26 is located in a first body mobile 24 and a second fixed body 30. The first body mobile 24 is secured to the base 18 while the second fixed body 30 is integral with the frame 3.
  • the first moving body 24 When screwing the screw 26, the first moving body 24 is translated vertically relative to this screw 26, while the second fixed body 30 is locked in translation with respect to this same screw 26.
  • This arrangement allows through the vertical displacement of the movable body 24, to adjust the altitude of the ensemble formed by the first 2 and the second guide means 6.
  • the support 1 comprises means capable of adjusting the difference between the altitude z 1 and the altitude z 2 .
  • These means are thus added to the vertical adjustment system described above, which concerns only the adjustment of the altitude of the assembly formed by the first and second guide means 2 and 6.
  • these means capable of adjusting the difference in altitude do not respond to a need for alignment between the guide means 2,6 of the different supports 1, but strive to promote the best possible way, the passage of the cylindrical element of the first guide means 2 towards the second guide means 6.
  • An optimal adjustment of the altitude difference between these two means thus makes it possible to avoid the frontal impact between the cylindrical element and the second guide means 6.
  • the difference in altitude ⁇ H between the altitude z 2 and the altitude z 1 symbolized in Figure 2 is a few tenths of a millimeter.
  • These means able to settle the difference of altitude include two screws 32a, 32b arranged vertically and facing in a body 34 supporting the roller 4.
  • the displacement of these screws 32a, 32b leads to the displacement of an axis of the roller 4 in slots formed in the body 34, integral with the 14. This particular arrangement thus provides a fine adjustment, allowing you to adjust the relative vertical positions of the first and second guide means 2 and 6.
  • the invention also relates to a carrier of cylindrical elements comprising at less a support 1 as described above.
  • Each support 1 is able to authorize the scrolling of cylindrical elements.
  • the different supports 1 are spaced a length of 60cm.
  • This example is for a carrier for Zircaloy (registered trademark) tubes in which wants to introduce pellets of a fuel component including mixed oxide of uranium and plutonium, to form the constituent elements of a nuclear reactor core.
  • the invention relates to a method of conveying cylindrical elements on to less a support 1 as described above.
  • the cylindrical elements during their passage on each support 1, undergo different successive steps.
  • these cylindrical elements undergo primary guidance using the first guide means 2. This is done by the roller 4 straightening the downstream part of the cylindrical elements lying in cantilever.
  • cylindrical elements undergo secondary guidance replacing the primary guidance.
  • This guidance secondary is carried out using the second means of guidance 6, the friction resulting from the guidance secondary being weaker than friction resulting from the primary guidance.
  • This secondary guidance is carried out using the bearing balls 8a, 8b, also able to authorize the rotation of the elements cylindrical along their axis. As an example, this rotation is particularly interesting when one wants to perform a welding operation at the end cylindrical elements. To resume the example precedent, the case may arise in particular when tubes filled with pellets must be closed using a welded cap on their end.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Physical Vapour Deposition (AREA)
  • Framework For Endless Conveyors (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Specific Conveyance Elements (AREA)
  • Tyre Moulding (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
EP03729505A 2002-01-15 2003-01-13 Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports. Expired - Lifetime EP1465825B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0200430A FR2834699B1 (fr) 2002-01-15 2002-01-15 Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports
FR0200430 2002-01-15
PCT/FR2003/000085 WO2003059791A1 (fr) 2002-01-15 2003-01-13 Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports.

Publications (2)

Publication Number Publication Date
EP1465825A1 EP1465825A1 (fr) 2004-10-13
EP1465825B1 true EP1465825B1 (fr) 2005-08-31

Family

ID=8871290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03729505A Expired - Lifetime EP1465825B1 (fr) 2002-01-15 2003-01-13 Support pour elements cylindriques en defilement et procede et transporteur utilisant de tels supports.

Country Status (11)

Country Link
US (1) US7207555B2 (ja)
EP (1) EP1465825B1 (ja)
JP (1) JP4237630B2 (ja)
CN (1) CN100379657C (ja)
AT (1) ATE303329T1 (ja)
CA (1) CA2473111C (ja)
DE (1) DE60301485T2 (ja)
ES (1) ES2247539T3 (ja)
FR (1) FR2834699B1 (ja)
RU (1) RU2312805C2 (ja)
WO (1) WO2003059791A1 (ja)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5203599B2 (ja) * 2005-12-07 2013-06-05 インベンテイオ・アクテイエンゲゼルシヤフト リフトシステム、搬送システム受け座、搬送システム受け座と搬送システム構造体とを備える中間製品
CN101284598B (zh) * 2008-05-26 2011-06-29 安东石油技术（集团）有限公司 台阶过渡滚轮
KR200452895Y1 (ko) * 2008-07-25 2011-03-31 현대제철 주식회사 펌프의 임펠러 정비용 작업대
US8118293B1 (en) * 2009-03-18 2012-02-21 The United States Of America As Represented By The Secretary Of The Navy Multi-axis cylinder manipulator
US9878598B2 (en) * 2012-08-31 2018-01-30 Daniel Boehmer Windshield setting system
US10322475B2 (en) * 2016-11-23 2019-06-18 Sumner Manufacturing Company, Llc Adjustable pipe roll and support mechanism
US11127508B2 (en) * 2018-10-08 2021-09-21 Bwxt Nuclear Energy, Inc. Nuclear thermal propulsion fuel element packing device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1349070A (en) * 1919-04-10 1920-08-10 Nat Tube Co Apparatus for dressing skelp
US2667978A (en) * 1951-07-31 1954-02-02 Pridy Whetstine Buck Two-way pipe roller rest
FR1388073A (fr) * 1963-12-27 1965-02-05 Wendel & Cie De Dispositif de guidage à billes
DE2808812C2 (de) * 1978-02-27 1984-02-09 Mannesmann AG, 4000 Düsseldorf Transport- und Führungsrollgang für langgestrecktes Rundmaterial wie Rohre und Stangen
DE3040447C1 (de) * 1980-10-27 1982-08-19 Reinhardt Maschinenbau Gmbh, 7032 Sindelfingen Rollentisch fuer Blechbearbeitungsmaschinen
US4470291A (en) * 1982-04-13 1984-09-11 Victaulic Company Of Canada Limited Pipe-locking formation method and apparatus
US4852623A (en) * 1988-05-03 1989-08-01 Rodrigues John M Extension table for a table saw
US5673843A (en) * 1995-06-07 1997-10-07 Gainey; Kenneth Clifford Transportable pipe welding and fabrication station
GB2308602B (en) * 1995-12-29 2000-01-26 Minebea Kk Stainless steel for anti-friction bearing
US5934626A (en) * 1997-12-16 1999-08-10 Sumner Manufacturing Company, Inc. Adjustable pipe roll and support mechanism

Also Published As

Publication number Publication date
ES2247539T3 (es) 2006-03-01
JP2005514296A (ja) 2005-05-19
DE60301485T2 (de) 2006-06-14
WO2003059791A1 (fr) 2003-07-24
US7207555B2 (en) 2007-04-24
CN1615260A (zh) 2005-05-11
RU2312805C2 (ru) 2007-12-20
JP4237630B2 (ja) 2009-03-11
DE60301485D1 (de) 2005-10-06
CA2473111A1 (fr) 2003-07-24
CA2473111C (fr) 2010-05-11
FR2834699A1 (fr) 2003-07-18
US20050121563A1 (en) 2005-06-09
ATE303329T1 (de) 2005-09-15
FR2834699B1 (fr) 2004-07-09
EP1465825A1 (fr) 2004-10-13
CN100379657C (zh) 2008-04-09
RU2004124719A (ru) 2005-04-27

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